9C 6726 then CZ 323 at Guangzhou
Ningbo → Guangzhou → Phnom Penh
Timetable, Guangzhou time
22:159C 6726 from Ningbo at the gate
21:35CZ 323 to Phnom Penh leaves the gate
23 h 20 apart on the timetable, overnight
CZ 323 leaves 23 h 20 after 9C 6726 arrives on the timetable: more than half a day, so not a connection we count.